Phantom Lake is a small lake inside the city limits of Bellevue, Washington, east of Seattle. A 2.6-mile (4.2 km) pedestrian trail circles the lake, and according to the city government, Bellevue's oldest and largest trees are there.Located about a mile (1.6 km) north of Interstate 90 and west of nearby Lake Sammamish, its surface elevation is approximately 250 feet (76 m) above sea level. Bellevue Airfield, closed in 1983, was nearby to the southwest; the approach to runway 20 was along the lake's southeastern shore.